/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.ignite.internal.processors.cache.persistence.wal.filehandle;

import org.apache.ignite.internal.processors.cache.persistence.wal.io.SegmentIO;
import org.jetbrains.annotations.NotNull;

/**
 *
 */
public abstract class AbstractFileHandle {
    /** I/O interface for read/write operations with file. */
    protected SegmentIO fileIO;

    /** Segment idx corresponded to fileIo. */
    private final long segmentIdx;

    /**
     * @param fileIO I/O interface for read/write operations of AbstractFileHandle.
     */
    public AbstractFileHandle(@NotNull SegmentIO fileIO) {
        this.fileIO = fileIO;
        segmentIdx = fileIO.getSegmentId();
    }

    /**
     * @return Absolute WAL segment file index (incremental counter).
     */
    public long getSegmentId() {
        return segmentIdx;
    }
}
